"Cold Composting" to increase soil fertilization and reduce emissions and waste

Problem statement

Mowing the lawn generates a large amount of landfill, emissions to the environment from transport to landfill and energy consumption in the process.

Executive summary

"The practice of mowing the lawn and leaving the grass clippings on the ground is called ""Cold Composting"". The trimmings decompose and increase soil fertility rather than being collected and sent to landfills or a traditional composting facility."

Technology description

At the Lovell Federal Health Care Center in Illianois, USA, 320 tonnes of waste from lawn mowing was reduced by the simple practice of not picking up waste after finishing. This helps reduce the amount of waste sent to landfills, a practice that is under-exploited. Grass clippings left on the ground increase soil fertility. It also reduces the consumption of resources such as energy and labour involved in sending this waste to landfill, as well as eliminating the greenhouse gas emissions involved in transporting this waste.

Market deployment considerations


Environmental considerations


Technology feedstock


Type of process

biological treatment

Technology output



Village, Community

Technology Readiness Level



United States




Public sector

Technology owner/developer

Lovell Federal Health Care Center
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